The diatom itself may be washed in the same way, if it is not too small.
It is necessary to avoid any air current which will cause the diatom to fall from the thread.
The belt of Diatom ooze is certainly a little further to the southward in long.
It is somewhat singular that Diatoms did not appear to be in such large numbers on the surface over the Diatom ooze as they were a little further north.
In fact, the two pass without any sharp boundary into each other, and both present transitions to the Diatom ooze.
Diatom ooze and partly of Globigerina ooze, richer in species (see note A).
Another diatom common in Cochituate is Tabellaria Fenestrata, which grows in ribbon-like forms.
The most common diatom in Cochituate water is Asterionella Bleakleyii.
At last it has reached a moving diatom with one of its long arms, which it immediately wraps around it, and now the other arms are contracted and the creature actually folds itself around its dinner!
This diatom is often found in abundance in the water supplies of cities.
The box or shell, called pustule, is of silex or quartz, and is therefore almost indestructible; and when the diatom dies, sinks to the bottom of the water.
